Skip to content

Physics Quote by John McDonald

“There must be a positive and negative in everything in…” quote by John McDonald
Download Open image
“There must be a positive and negative in everything in the universe in order to complete a circuit or circle, without which there would be no activity, no motion.”

John McDonald

3.9 out of 5 (7 ratings)

More by John McDonald

Explore all 5 John McDonald quotes

More Physics quotes

Browse all 4,283 Physics quotes